The crash happened around 10:30 p.m. Tuesday on the 18th hole, near Bowman Field.

The four men, in their late teens and early 20's, were taken to University Hospital with traumatic injuries.

One of the victims has been identified as Josh Daddona.

The Federal Aviation Administration is on the scene, investigating the crash site.

Authorities say it is a Cessna 172, and carries about 56 gallons of fuel on board.

There is an active fuel leak from the wreckage, so crews put a foam blanket on the area to prevent a fire.

A witness, who called 911, says the plane was spinning before it hit the ground, likely nose first.

The tower at the airport is staffed until 9:00 p.m. After that, authorities say runway lights can be activated by aircraft.

“They are absolutely lucky in this in aspect that we had an actually witness that saw the plane go down, because where it's located, it's not in proximity to any dwellings and potentially if this would have happened and there had not been a witness, no telling how long these people would be stuck in the aircraft with life threatening injuries,” said Chief Gregory Frederick with the Louisville Fire Department

The golf course is open.

Images: Plane crashes at Seneca Golf Course

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Four people were injured when a plane went down on the Seneca Golf Course.

REPORT COMING UP AT 12-30. ALSO DEVELOPING RIGHT NOW... FEDERAL INVESTIGATORS ARE AT THE SENECA PARK GOLF COURSE AT THIS HOUR... INVESTIGATING A SMALL PLANE CRASH. THE WLKY NEWS CHOPPER IS HOVERING ABOVE THE CRASH SITE RIGHT NOW.. FOUR PEOPLE WERE ON BOARD WHEN THE PLANE WENT DOWN AROUND TEN- THIRTY LAST NIGHT. THE GOLF COURSE IS LOCATED OFF PEWEE REESE ROAD NEAR INTERSTATE 64. WLKY'S JESSICA OH IS LIVE AT SENECA PARK GOLF COURSE WITH THE LATEST DEVELOPMENTS... JESSICA.